Chapter 4 123TroubleshootingCommon ProblemsUse the following procedure as a guide for computer problems.NOTE: The diagnostic tests are intended to test only Acer products. Non-Acer products, prototype cards, ormodified options can give false errors and invalid system responses.1. Obtain the failing symptoms in as much detail as possible.2. Verify the symptoms by attempting to re-create the failure by running the diagnostic test or by repeatingthe same operation.3. Use the following table with the verified symptom to determine which page to go to.4. If the Issue is still not resolved, see “Online Support Information” on page 169.Symptoms (Verified) Go ToPower On Issue Page 124No Display Issue Page 125LCD Failure Page 127Internal Keyboard Failure Page 127Touchpad Failure Page 128Internal Speaker Failure Page 128Internal Microphone Failure Page 130ODD Failure Page 132Rightside USB Failure Page 135Modem Failure Page 135WLAN Failure Page 136Acer EasyLaunch Button Failure Page 136Acer MediaTouch Failure Page 137Fingerprint Reader Failure Page 137Thermal Unit Failure Page 138HDTV Switch Failure Page 138Other Functions Failure Page 139Intermittent Failures Page 140Undermined Failures Page 140Chapter 4